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How many octahedral and tetrahedral voids are present in HCP?
Ans) octa -no of atoms prsnt ,nd tetra -twice of it.
Calculate the ideal rM/rX ratio for cation-anion and anion-anion contacts of an octahedral arrangement of anions around a cation as show in one plane in the figure below.
State 2nd law of thermodynamics in many forms as possible and show that they are identical in figures?
Calculate the total heat (in J) needed to convert .777 moles of gaseous ethanol at 300 degrees C and 1 atm to liquid ethanol at 25 degrees C and 1 atm. Extra info: b.p. 78.5 degree
mathematical expression for conductivity of polymers
The Carnot cycle consists of four processes in succession: 1. isothermal compression from T L , V 1 to T L , V 2 2. adiabatic compression from T L , V 2 to T H , V 3 3
What is the packet of energy called: (1) Electron (2) Photon (3) Positron (4)Proton Ans: Photon
Q.How can we determine Concentrations of Solutions? Ans. The concentration of a solution is the quantitative expression of the amount of solute dissolved in the solution.
Q.Illustrate the Basic structure of polymers? Ans. Polymers are large organic compounds made of regularly repeating units. Plastics are made of polymers. Polymers ar
(a) Given the values below, calculate the concentration of benzoyl peroxide required to prepare polystyrene with a number average molar mass of 400,000 by bulk free radical polymer
387 J/Kg. C or 0.0924 Cal/g.C
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